Viking Quiet Cool VCRB5301, Service Manual

Page: 17 / 47

To avoid risk of electrical shock, personal injury, or death, disconnect electrical power source to unit, unless test
procedures require power to be connected. Discharge capacitor through a resistor before attempting to service.
Ensure all ground wires are connected before certifying unit as repaired and/or operational.
WARNING !
Disassembly
©2012 Viking Preferred Service 17
Overlay Switch (continued)
4. Peel overlay off control panel and remove
(remove adhesive to ensure replacement
overlay adheres properly)
5. Reverse procedure to reinstall.
High Voltage Board
A control board is used to operate functions
of the unit. Once an input is received from
the low voltage board, the high voltage board
sends an output to activate the components.
1. To access the high voltage board, remove
the upper air grill assembly, and control
panel (see Air Grill and Control Panel
Removal sections, Page 15).
2. Compress plastic standoffs securing the
high voltage board and pull towards you.
HV Board
High voltage board is now accessible.
To check high voltage board, refer to
chart on Page 37.
3. Reverse procedure to reinstall.
Low Voltage Board
The unit uses a control board in conjunction
with an overlay switch to operate functions
of the refrigerator/freezer. Interaction with
the low voltage board is via the ribbon cable
attached to the overlay switch.
1. To access the low voltage board, remove
the upper air grill assembly, control panel
(see Air Grill and Control Panel Removal
sections, Page 15).
2. Compress plastic standoffs securing low
voltage board, disconnect wiring and
remove.
LV Board
To check low voltage board, refer to
chart on Page 38.
3. Reverse procedure to reinstall